Studies on transmission of Indian peanut clump virus disease by Polymyxa graminis

Ratna, A S and Rao, A S and Reddy, A S and Nolt, B L and Reddy, D V R and Vijayalakshmi, M and McDonald, D (1991) Studies on transmission of Indian peanut clump virus disease by Polymyxa graminis. Annals of Applied Biology, 118 (1). pp. 71-78. ISSN 0003-4746

[img] PDF - Published Version
Restricted to ICRISAT users only

Download (491kB) | Request a copy


The plasmodiophoromycete fungus, Polymyxa graminis was observed in the roots of Sorghum bicolor, S. sudanense, Pennisetum glaucum, Triticum aestivum, Cyperus rotundus, Eleucine coracana, Zea mays, Tridax procumbens and Arachis hypogaea collected from Indian peanut clump virus (IPCV)-infested fields. Examination of roots of IPCV-infected S. bicolor, S. sudanense, P. glaucum and T. aestivum grown in previously air dried field soil also showed the presence of cystosori of P. graminis. IPCV-infested soil stored at room temperature for 3 years transmitted the virus to A. hypogaea, T. aestivum and S. bicolor. Roots extracted from IPCV-infected P. glaucum and S. bicolor containing cystosori, and dried root fragments incorporated into sterile soil, transmitted the virus to A. hypogaea and T. aestivum. The root extracts contained primary zoospores of the fungus, presumably arising from cystosori. Utilising root fragments of S. sudanense containing cystosori as inoculum P. graminis was shown to infect both monocotyledonous and dicotyledonous plants. Profuse cystosorus production in rootlets only occurred in monocotyledonous plants. In dicotyledonous plants, in general, only few rootlets showed cystosori. Indian isolates of P. graminis appear to differ from isolates from temperate soils in that they can infect dicotyledonous plants and have a much wider host range

Item Type: Article
Uncontrolled Keywords: Indian peanut clump virus;Polymyxa graminis;soil-borne;furoviruses;cystosori;fungal transmission;plasmodiophoromycete
Subjects: Mandate crops > Groundnut
Others > Plant Virology
Depositing User: Mr B K Murthy
Date Deposited: 20 Apr 2013 05:10
Last Modified: 17 Sep 2013 07:55
Official URL:
Acknowledgement: UNSPECIFIED
View Statistics

Actions (login required)

View Item View Item